Fan noise reduction method and low-noise fan

A fan and noise reduction technology, applied in the direction of machines/engines, mechanical equipment, liquid fuel engines, etc., can solve the problems of loud fan noise and poor use effect, and achieve optimal performance, reduce mutual collisions, and improve wind speed. Effect

Pending Publication Date: 2019-04-12
XUXIN ELECTRICAL TECH (SHENZHEN) CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a fan noise reduction method and a low-noise fan to overcome the defects of the existing fan with high noise and poor use effect

Method used

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  • Fan noise reduction method and low-noise fan

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Embodiment Construction

[0031] The idea, specific structure and technical effects of the present invention will be clearly and completely described below in conjunction with the embodiments and accompanying drawings, so as to fully understand the purpose, features and effects of the present invention. Apparently, the described embodiments are only some of the embodiments of the present invention, rather than all of them. Based on the embodiments of the present invention, other embodiments obtained by those skilled in the art without creative efforts belong to The protection scope of the present invention. In addition, all the connection / connection relationships involved in the patent do not simply refer to the direct connection of components, but mean that a better connection structure can be formed by adding or reducing connection accessories according to specific implementation conditions. The various technical features in the present invention can be combined interactively on the premise of not co...

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Abstract

The invention relates to a fan noise reduction method and a low-noise fan. The fan noise reduction method comprises the steps that a volute is arranged; a plurality of independent air flues are arranged in the volute, and each air flue communicates with an air inlet and an air outlet; and air enters the volute from the air inlet and forms air flow under driving of blades, and the air flow is exhausted from the air outlet through the different air flues. The low-noise fan comprises the volute and a plurality of the blades, the blades are arranged at the air inlet in a surrounding mode, the multiple air flues extend to the air outlet on the basis of the air inlet, and the two ends of the air flues communicate with the air inlet and the air outlet. According to the fan noise reduction methodand the low-noise fan, a plurality of the independent air flues are arranged in the volute, the air flow in the different air flues does not collide with one another and has no interference, the collision frequency of the air flow in the fan is decreased, resonance is avoided, noise of the fan is reduced, the air speed of the air flow can not be decreased or the air flow can not be detained due tocollision, therefore, the air outlet speed at the air outlet is increased, and the using performance of the fan is optimized.

Description

technical field [0001] The invention relates to the technical field of fan equipment, in particular to a noise reduction method for a fan and a low-noise fan. Background technique [0002] The permanent equipment produced by the fan industry is widely used in air circulation, automobile cooling, material transportation and other fields in the metallurgical and mining industry. When the fan is running, the motor is generally used as the power to drive the fan blades to rotate. The fan blades compress and accelerate the airflow to increase the airflow. The pressure and speed of the volume are discharged from the outlet of the fan. [0003] During the operation of the fan, due to the imbalance and mutual friction of the rotating parts, as well as the impact and friction between the airflow and the impeller, the blade and the inner wall of the air duct, noise is generated, which affects the use of the fan. At present, the noise control of the fan in the industry is generally pas...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04D29/42F04D29/66
CPCF04D29/4226F04D29/661
Inventor 张平孙兴林孙叶琳周赤峰周慧珠骆兰英
Owner XUXIN ELECTRICAL TECH (SHENZHEN) CO LTD
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